At-Home DNA Test Kit

Home DNA Grandparent Test

The DNA Grandparent Test is used to determine the likelihood of potential grandparents being the biological grandparents of a grandchild. The test can be taken by the grandmother, the grandfather, or both grandparents together.

  • Results in 1-2 business days after we receive your samples
  • Each DNA test is conducted twice for 100% accuracy
  • ISO/IEC 17025, AABB, & CLIA accredited laboratory


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Fast, Accurate and Discreet DNA Testing


The DNA Grandparent Test offers a powerful means of uncovering the truth about familial relationships, especially when the alleged parents are unavailable for testing. Grandmothers, grandfathers, or both can take the test to investigate the likelihood that they are the biological grandparents of a grandchild. There is no age limit, so the test can be done on infants and adult grandchildren alike.

When the parent in question is available, a paternity or maternity test is recommended over the grandparent DNA test. However, when the alleged parents are missing, deceased, or unwilling to participate, testing the grandparents becomes invaluable for exploring potential grandparent-grandchild biological relationships.

The test is conducted in our laboratory, which is internationally accredited to the highest standards of quality and accuracy by AABB, ISO17025, and CLIA. Each test comes with a comprehensive genetic report that provides clear and reliable results.

Technical Information

The grandparent DNA test starts by collecting buccal (mouth) swab samples from the grandparent(s) and grandchild. These swabs gather cells containing each individual’s unique DNA. In the lab, DNA is extracted from the cells and specific regions are amplified via PCR (polymerase chain reaction) for analysis. The grandparent’s DNA pattern is then compared to the grandchild’s pattern.

A statistical analysis is performed to calculate the likelihood of a biological grandparent-grandchild relationship based on the genetic markers shared between them. This analysis produces a “grandparentage index” – the higher the index value above 1.0, the more likely the grandparent and grandchild are biologically related. An index below 1.0 indicates a lower probability of a biological relationship.

How Home DNA Testing Works

Order Test Kit

From paternity tests to grandparent tests, we offer a wide range of DNA tests to fit your needs.

Collect & Ship

Easily swab the participants with our painless mouth swabs, then send the samples to our laboratory for analysis.

Receive Results

Access your confidential results online within 1-2 business days after our laboratory receives your samples.

Secure & Confidential Online Results

Monitor the progress of your tests in real-time and securely access your confidential results anytime, anywhere, on any device.

Frequently Asked Questions

Once you place your order for Home DNA Grandparent Test, we'll promptly send you a DNA test kit. The kit comes complete with easy-to-follow instructions to guide you through collecting a mouth swab sample from each person participating in the test. Simply rub the swabs gently inside the mouth for 15 seconds, then send the collected samples to our laboratory for analysis.

We'll start testing your DNA samples immediately after they arrive at the laboratory, and your Home DNA Grandparent Test results will be ready within just 1 to 2 business days. We'll notify you when your samples arrive at the lab, and again after your test is completed. You can download or view your results directly from your secure online account, available online 24/7.

Once we receive your samples, testing begins immediately, and results are usually ready within 1 to 2 business days. You can access your results securely online through your secure online account.

You can view your Home DNA Grandparent Test results discreetly from your secure online account once the test is completed. You also have the option to download and print unlimited copies of your final test report.

Selecting an accredited DNA testing laboratory is essential for several reasons. Firstly, accreditation serves as a mark of legitimacy and trustworthiness. It assures you that the laboratory meets stringent standards and follows established protocols to ensure accurate and reliable testing.

Accreditation also guarantees the highest quality of testing. Accredited laboratories undergo comprehensive evaluations by reputable organizations to assess their proficiency and competence. By choosing an accredited laboratory, you can have confidence in the precision and integrity of your test results.

At Genetrack, we take pride in being one of the few DNA laboratories worldwide to have received all major internationally recognized and prestigious DNA laboratory accreditations. These include ISO/IEC 17025, Standards Council of Canada (SCC), American Association of Blood Banks (AABB), College of American Pathologists (CAP), and Clinical Laboratory Improvement Amendments (CLIA) , a testament to our commitment to upholding the highest standards in DNA testing.

This test is used to determine if an individual is the biological grandmother or grandfather of a child when the alleged parent is not available for testing. This could be for personal reasons, such as establishing family relationships, or for legal reasons, such as inheritance disputes or immigration cases.

Yes, the home DNA test is just as accurate as the legal DNA test. Both tests are performed in our accredited laboratory and use the same advanced technology and rigorous testing procedures to analyze the DNA samples. The results from both tests are equally accurate and reliable.

The main difference between the two tests is not the accuracy of the results, but the method of sample collection and the documentation process. For a home DNA test, you collect the samples yourself at home, while for a legal DNA test, the sample collection must be witnessed by a neutral third party, such as a medical professional or a legal representative, to maintain a chain of custody. This chain of custody process is what makes the results of a legal DNA test admissible in court.

If you need the test results for legal purposes, such as child custody cases, child support disputes, inheritance claims, or immigration applications, you would need to order the legal DNA test. If you're simply seeking to confirm a biological relationship for personal knowledge, the home DNA test would be sufficient.

If the participants live in different cities, you can split the kit and send the components to each party for sample collection. Each component has a barcode to ensure the samples are tested together when they arrive at the laboratory. Even if the samples are collected separately, they will still be tested together once they arrive at the laboratory.


No, our at-home DNA grandparent test kit allows you to collect DNA samples from the comfort of your own home. The kit includes all the necessary materials and instructions for sample collection. Once you’ve collected the samples, you simply send them back to our lab for testing.

Yes, there is no age limit for DNA testing so the test can be performed on infants as well as adults. The DNA sample is collected using a simple and painless cheek swab.

The Home DNA Grandparent Test kit has no expiration date, so you can use it at any time that's convenient for you. After you've collected the samples, the DNA remains viable for at least 3 months. This means you have plenty of time to send the samples back to our lab for testing.

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